362 BIOLOGY OF THE PROTOZOA 



2. Test minute; hyaline; spheroidal; colored 



globule Genus Diplophrys 



Test medium; oval; encrusted or not; with 



symbionts Genus Amphitrema 



SPECIAL BIBLIOGRAPHY. 



Cash, J.: 1905-1921, The British Freshwater Rhizopods and Heliozoa, Ray. Soc. 



London. 

 Haeckel, E.: 1888, Radiolaria, Challenger Reports, vols. 17 and 18. 

 Jahn, E.: 1901-1911, Myxomycetenstudien, Berich, Deutsch. Bot. Ges., 19-29. 

 Lister, A.: 1924, A Monograph on the Mycetozoa, 33d ed., Brit. Museum. 

 MacBride, T. H.: 1922, North American Slime Moulds, 2d ed. Macmillan. 

 Rhumbler, L.: 1911-1913, Die Foraminiferen der Planktonexpedition. Kiel. 



